(w-7)3+-7w=-9

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Solution for (w-7)3+-7w=-9 equation:


Simplifying
(w + -7) * 3 + -7w = -9

Reorder the terms:
(-7 + w) * 3 + -7w = -9

Reorder the terms for easier multiplication:
3(-7 + w) + -7w = -9
(-7 * 3 + w * 3) + -7w = -9
(-21 + 3w) + -7w = -9

Combine like terms: 3w + -7w = -4w
-21 + -4w = -9

Solving
-21 + -4w = -9

Solving for variable 'w'.

Move all terms containing w to the left, all other terms to the right.

Add '21' to each side of the equation.
-21 + 21 + -4w = -9 + 21

Combine like terms: -21 + 21 = 0
0 + -4w = -9 + 21
-4w = -9 + 21

Combine like terms: -9 + 21 = 12
-4w = 12

Divide each side by '-4'.
w = -3

Simplifying
w = -3

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